Cavity Wall Insulation
Insulation in your cavity walls is one of the easiest and cheapest ways to reduce your utility bills. While houses built from the 1990s onwards will already have this, there are a lot of properties before then which will have not been insulated.
Why Cavity Wall Insulation?
A cavity wall is an external wall of a property that has a gap in between two layers of bricks. They're connected together via metal poles which hold the two walls together. This is done for better heat retention, however, it can still be insulated to improve it further.
Small holes are driven into the outside layer of the wall, this allows a tube to be inserted and the insulation is blown inside. This insulation, thermabead, fills all the cracks to make sure that there is no place left in the wall.
When installed correctly, cavity wall insulation is a very effective insulation that does not result in cold and damp patches.